Traveling 130.25 miles through the Green Mountain State, Interstate 89 comprises a scenic freeway angling northwest from the Connecticut River and New Hampshire state line along the White River to Royalton. The route curves northward from there through Bethel to Randolph, Brookfield and Montpelier. The freeway again veers westward from the capital city along the Winooski River to Middlesex, Waterbury and across the Green Mountains through the town of Bolton.
Interstate 89 leaves the parallel Winooski River from Richmond to Williston and the Burlington suburbs. The freeway curves northward again through urbanized South Burlington and Winooski, serving Vermont's largest city to the east. The remainder of I-89 runs north through the Lake Champlain area, joining Burlington with Milton, Georgia, St. Albans and Swanton before ending at the international border in the town of Highgate.
Presently the north end of Interstate 89 connects with Quebec Provincial Route 133. An extension of Autoroute 35 is under construction to extend the freeway southeast around Missisquoi Bay to directly link with I-89. Completion of this route, scheduled for 2017, will provide a high-speed route to Montreal, Canada.
The first stretch of Interstate 89 in Vermont opened between Montpelier and Middlesex on November 21, 1960. A second portion extended that segment 5.106 miles from Middlesex to Waterbury on December 31, 1960. 50.506 miles of the route were opened by 1965.1
Interstate 89 Vermont Guides
- "Outline History of Vermont State Highways." Vermont Department of Highways, National Highway Week, September 19-25, 1965.
Page Updated 03-12-2015.